EP 2761739 A4 20150610 - SYSTEMS AND METHODS FOR ADAPTIVE POWER AMPLIFIER LINEARIZATION
Title (en)
SYSTEMS AND METHODS FOR ADAPTIVE POWER AMPLIFIER LINEARIZATION
Title (de)
SYSTEME UND VERFAHREN FÜR ADAPTIVE STROMVERSTÄRKERLINEARISIERUNG
Title (fr)
SYSTÈMES ET PROCÉDÉS DE LINÉARISATION D'AMPLIFICATEUR DE PUISSANCE ADAPTATIF
Publication
Application
Priority
- US 201161541894 P 20110930
- US 2012058352 W 20121001
Abstract (en)
[origin: US2013082775A1] An exemplary system comprises a linearizer, a power amplifier, and a feedback block. The linearizer may be configured to use a predistortion control signal to add predistortion to a receive signal to generate a predistorted signal. The power amplifier may be configured to amplify power of the predistorted signal to generate a first amplified signal. The power amplifier may also add high side and low side amplifier distortion to the predistorted signal. The high side and low side amplifier distortion may cancel at least a portion of the predistortion. The feedback block may be configured to capture a feedback signal based on a previous amplified signal from the power amplifier, to determine high side and low side distortion of the captured feedback signal, and to generate the predistortion control signal based on the determined high side and low side distortion.
IPC 8 full level
H03F 1/00 (2006.01); H03F 1/56 (2006.01); H03F 3/21 (2006.01)
CPC (source: EP US)
H03F 1/3247 (2013.01 - EP US); H03F 1/56 (2013.01 - EP US); H03F 3/211 (2013.01 - EP US); H03F 3/24 (2013.01 - EP US); H03F 2200/204 (2013.01 - EP US); H03F 2200/207 (2013.01 - EP US); H03F 2200/387 (2013.01 - EP US); H03F 2200/405 (2013.01 - EP US); H03F 2200/408 (2013.01 - EP US); H03F 2200/411 (2013.01 - EP US); H03F 2201/3227 (2013.01 - EP US)
Citation (search report)
- [X] JP 2002064340 A 20020228 - MATSUSHITA ELECTRIC IND CO LTD
- [X] US 2001048346 A1 20011206 - MATSUURA TORU [JP], et al
- [X] EP 1569331 A1 20050831 - NTT DOCOMO INC [JP]
- [X] US 2003053552 A1 20030320 - HONGO NAOKI [JP], et al
- See references of WO 2013049843A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2013082775 A1 20130404; US 8766718 B2 20140701; CN 103959643 A 20140730; EP 2761739 A1 20140806; EP 2761739 A4 20150610; EP 2761739 B1 20190807; MY 164099 A 20171130; SG 11201400984W A 20140428; SI 2761739 T1 20191231; US 2014306757 A1 20141016; US 9154085 B2 20151006; WO 2013049843 A1 20130404
DOCDB simple family (application)
US 201213633066 A 20121001; CN 201280058770 A 20121001; EP 12835935 A 20121001; MY PI2014000870 A 20121001; SG 11201400984W A 20121001; SI 201231682 T 20121001; US 2012058352 W 20121001; US 201414314906 A 20140625